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/* SPDX-License-Identifier: MIT */ #ifndef _XE_I2C_H_ #define _XE_I2C_H_ #include <linux/bits.h> #include <linux/notifier.h> #include <linux/types.h> #include <linux/workqueue.h> struct device; struct fwnode_handle; struct i2c_adapter; struct i2c_client; struct irq_domain; struct platform_device; struct xe_device; struct xe_mmio; #define XE_I2C_MAX_CLIENTS 3 #define XE_I2C_EP_COOKIE_DEVICE 0xde /* Endpoint Capabilities */ #define XE_I2C_EP_CAP_IRQ BIT(0) struct xe_i2c_endpoint { u8 cookie; u8 capabilities; u16 addr[XE_I2C_MAX_CLIENTS]; }; struct xe_i2c { struct platform_device *pdev; struct i2c_adapter *adapter; struct i2c_client *client[XE_I2C_MAX_CLIENTS]; struct notifier_block bus_notifier; struct work_struct work; struct irq_domain *irqdomain; int adapter_irq; struct xe_i2c_endpoint ep; struct device *drm_dev; struct xe_mmio *mmio; }; #if IS_ENABLED(CONFIG_I2C) int xe_i2c_probe(struct xe_device *xe); bool xe_i2c_present(struct xe_device *xe); void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl); void xe_i2c_irq_postinstall(struct xe_device *xe); void xe_i2c_irq_reset(struct xe_device *xe); void xe_i2c_pm_suspend(struct xe_device *xe); void xe_i2c_pm_resume(struct xe_device *xe, bool d3cold); #else static inline int xe_i2c_probe(struct xe_device *xe) { return 0; } static inline bool xe_i2c_present(struct xe_device *xe) { return false; } static inline void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl) { } static inline void xe_i2c_irq_postinstall(struct xe_device *xe) { } static inline void xe_i2c_irq_reset(struct xe_device *xe) { } static inline void xe_i2c_pm_suspend(struct xe_device *xe) { } static inline void xe_i2c_pm_resume(struct xe_device *xe, bool d3cold) { } #endif #endif
